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Finding the Fourth Proportional to 560,516.89, 773,529.69 and 305,884.48

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Solution

The fourth proportional to 560,516.89, 773,529.69 and 305,884.48 is: 422,129.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,516.89 : 773,529.69 = 305,884.48 : x
  2. Step 2: Convert to fraction form
    560,516.89/773,529.69 = 305,884.48/x
  3. Step 3: Cross multiply
    560,516.89x = 773,529.69 × 305,884.48
  4. Step 4: Simplify right side
    560,516.89x = 236,610,726,990.21
  5. Step 5: Solve for x
    x = 236,610,726,990.21/560,516.89
  6. Step 6: Final answer
    x = 422,129.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.